"A statement released by her office then said that the credit 'currently costs taxpayers billions', an assertion challenged shortly afterward by Univision analyst Fernando Espuelas in a column for the Hill. Espuelas pointed out that undocumented immigrants often pay taxes using the Individual Taxpayer Identification Number (ITIN), contributing what he described as a “net multibillion-dollar gain for the federal, state and local treasuries, even when factoring in the Child Tax Credit”. The Immigration Policy Center wrote in 2009 that in 2001, the ITIN brought in $300 million in taxes from undocumented filers."